Parent taxon: Hypsogastropoda according to P. Bouchet et al. 2017
See also Beesley 1998, Bouchet et al. 2005, Harzhauser 2007 and Jeffery 2003
Sister taxa: Abyssochrysoidea, Hipponicoidea, Latrogastropoda, Littorinimorpha, Littorinoidea, Lyocyclidae, Naticoidea, Rissooidea, Settsassiidae, Triphoroidea, Truncatelloidea, Vermetoidea, Weeksiidae
Subtaxa: Capulidae
Ecology: facultatively mobile epifaunal suspension feeder
Distribution:
• Quaternary of Antarctica (7 collections), Argentina (1), Canada (6: British Columbia, Newfoundland and Labrador, Nunavut, Quebec), Ecuador (1), Greenland (1), Ireland (1), Italy (15), Mayotte (1), Morocco (3), the Netherlands (1), New Zealand (2), Panama (1), South Africa (1), the United Kingdom (1), United States (5: Alaska, California, Florida, Oregon), Vanuatu (1)
• Pliocene of Belgium (4), the Dominican Republic (1), Ecuador (7), India (1), Italy (8), Jamaica (2), the United Kingdom (2)
• Miocene to Pliocene of the Dominican Republic (1)
• Miocene of Argentina (2), Australia (2), Austria (2), Colombia (1), Cyprus (1), the Dominican Republic (5), France (1), Germany (3), India (1), Indonesia (3), Italy (2), the Netherlands (2), New Zealand (1), Poland (1), United States (1: Florida)
• Oligocene of Australia (1), Oman (1), United States (3: Mississippi)
• Eocene of Brazil (1), Colombia (1), France (11), Germany (1), Italy (1), Jamaica (1), the United Kingdom (3), United States (43: Alabama, Louisiana, Mississippi, Texas, Washington)
• Paleocene of Argentina (1), Denmark (1), United States (5: Alabama, Texas)
• Cretaceous of Germany (3), Japan (1), Pakistan (1), South Africa (1), Sweden (1), United States (74: Alabama, California, Delaware, Mississippi, North Carolina, Tennessee, Texas)
• Jurassic of France (1)
• Triassic of Hungary (1), Italy (2), United States (2: Alaska, California)
• Permian of Australia (1), Indonesia (7), United States (1: Alaska)
• Carboniferous of the United Kingdom (1)
• Silurian of Morocco (1)
Total: 274 collections including 332 occurrences